chore: add Bug issue template

.gitlab/issue_templates/Bug.md

@@ -0,0 +1,40 @@
+## Description
+
+Please write a clear and concise description of the issue you are getting.
+
+## Machine Information
+
+Please write down the specification of your machine.
+
+### Example: 
+
+**Device**: Lenovo ideapad 330S-14IKB 81F4\
+**Operating System**: Arch Linux rolling\
+**CPU**: Intel Core i7-7700K x86_64 (write down the CPU architechture too)\
+**Kernel**: 5.14.14-hardened1-1-hardened\
+**Desktop Environment**: N/A (Linux only; **explicitly** leave as N/A if you are using bare WM)\
+**Window Manager**: Sway 1.6.1-2 (Linux only)\
+**Install Method**: Arch User Repository (write down from where you installed the software)\
+**Desktop Server Protocol**: Wayland 1.19.0-2 (Linux only)
+
+If you believe that some of these informations are irrelevant (such as DE and WM information on Windows/MacOS, you may leave them out). Additionally, add information missing from the above example should it be important for the bug.
+
+## Steps to Reproduce
+
+Please write down the steps to reproduce the issue.
+
+## Expected Result
+
+Please write down the result you were expecting.
+
+## Actual Result
+
+Please write down the result that you found.
+
+## Screenshots
+
+Please attach screenshots here if there are any.
+
+## Additional Notes and Information
+
+Please write down any additional notes and information you find useful. Leave blank if you don't have any.